Phonograph.



1. IOHNSON.I

PHoNoGRAPH. APPLICATION FILED APR.`25| 1914.

1,145,146. I Patented July 6, 1915. V2 SHEETS-snafu.

Snom/tto@ UNTTED STATES PATENT oFFioE.

JOHN JOHNSON', OF OLONG'APO, PHILIPPINE ISLANDS.

PHoNoeRAPH.A y

To all whom t may concern -Be itknown that I, JOHN. JOHNSON, a citizen` of the United' States, residing at Olongapo, in the Philippine Islands, have invented new and useful Improvements in Phonographs, of which the following is a specificati on.

The inventlon relates to talking machines, and has for an' object to provide a. phonograph which will clearly and distinctly reproduce vocal, instrumental or other sounds and whereby the pitch 'of musical notes can be varied.

In the further disclosure of theinvention reference is to be had to the accompanying drawings, constituting a part of this speciication, in which similar charactersof reference denote corresponding parts in all 'the views, and in which:

Figure 1 is a' side elevation of the phonograph; Fig. 2 Vis a plan view; Fig. 3 is a front elevation; Fig. 4 is a partial vertical longitudinal sectional view of the structure shown in Figs. 1 and 2; and Fig. 5 is a fragmentary enlarged sectional view showing in detail the construction of the tone arm.

Referring more particularly to the views, I provide a base 10 consisting of a series of uprights 11 connected by horizontal braces 12 and diagonal braces 13, the said -base being arranged to support a casing 14- sub-l divided by a partition 15 to provide a record compartment 16 .and a sound regulating' compartment 17. An upright 1,8 is supi ported on the casing 14 and carries a suitable horn 19 having its open end flared and arranged to terminate adjacent a transverse opening formed in the top wall of the sound regulating compartment 17, a plurality of relatively spaced sound guiding plates 21 being supported on the top wall of the com- Y partment 17, with the open end of the horn lying adjacent to the inner ends of the plates as shown. The other end of the horn has a tone arm 22 mounted to swing and to turn thereon by means of a universal coupling 23 and the said tone arm 22 consists, more particularly, of a, tubular outer member 24 having a flared end and Within which is arranged a tubular inner member 25, the said tubular inner member having its inner end secured within the tubular outer .member and its free end lying within the fia-red portion of the tubular outer member and spaced Specification of Letters Patent.

from -the side Walls thereof. A reproducer 26 1s mounted to turn on the flared end of the tubular'outer member 24 and carries a' stylus 27 adapted to operate over a record parent that when rotation is imparted to,

the record tablet having a sound record thereon the stylus 27 bearing on theI record- `will transmit the sound through the horn 19 in the usual manner and the same as 1n the ordinary phonographs now in use. A

A ,series of longitudinal guide strips 81 are secured to the-inner walls of the sound regulating compartment 17 and mounted to slide thereon is a regulating member 32 movable longitudinally within the compartment, thus restricting the open end of the compartment, as will be readily apparent by referring to the views, it'being further noted that the said member-32 can be moved toward or away from the transversejopening 20 formed4 in the upper wall of the compartment and which lies adjacent to the flared or-mouth end of the horn 19.

Now referring to the views it will be apin operation the sound issuing from the mouth end of the horn 19 canbe changed by advancing or retreating the member 82 in the compartment 17 for thepurpose of changing the pitch of the notes which issue from the horn.

From the foregoing description itWill be apparent that my device is simple in operation; will effectively change the pitch of the sound issuing from the mouth end of the horn by simply advancing or retreating the regulating member 32 in the compartment 17 and will thus permit of so regulating the resultant sou-nd produced when the stylus operatesover the record tablet that the voice of aperson can be raised or lowered in tone to suit the operator.

Although I have shown a. particular form of my invention in the drawings forming a part of this specification, it will be understood that I do not limit myself tothe speciiic construction disclosed; that various departures may be made without departing from the spirit of the invention and that the scope of the invention is defined in the appended claims.

Patented July 6, 1915. Application fuedapril 25, 1914. serial No. $534,482.` i

Having thus described my invention,` I

j claim:

l. In a phonograph, a casing, an amplifying horn supported on the casing, sound guiding plates on the casing and in juxta- .position to said horn, with an Opening sition to said horn, With an opening formed in the casing between said sound guiding plates, a regulating member arranged tO slide in the casing adjacent the Opening therein, and guide strips in the casing to slidably support the .regulating member therein.

3. In a phonograph, al casing having anv Opening, an amplifying lioin on the casing` and having its open end adjacent tlie Opening in said easing, and a regulating drawer sliding in an open ended chamber in the casing adjacent the opening in juxtaposition to the Open end of said horn.

In testimony whereof I aiiix my signature in presence of two witnesses.

JOHN JOHNSON.

Witnesses:

G. LEYOG,

APOLONIO CABATIT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

